@@ -499,6 +499,19 @@ Reader options
499499 references in the document so they point to the extracted files.
500500 This option only affects the docx and epub readers.
501501
502+`--abbreviations=`*FILE*
503+
504+: Specifies a custom abbreviations file, with abbreviations
505+ one to a line. If this option is not specified, pandoc will
506+ read the data file `abbreviations` from the user data
507+ directory or fall back on a system default. To see the
508+ system default, use
509+ `pandoc --print-default-data-file=abbreviations`. The only
510+ use pandoc makes of this list is in the Markdown reader.
511+ Strings ending in a period that are found in this list will
512+ be followed by a nonbreaking space, so that the period will
513+ not produce sentence-ending space in formats like LaTeX.
514+
502515[`pandocfilters`]: https://github.com/jgm/pandocfilters
503516[PHP]: https://github.com/vinai/pandocfilters-php
504517[perl]: https://metacpan.org/pod/Pandoc::Filter